Ask Experts Questions for FREE Help !
Ask
    orangedreamgirl's Avatar
    orangedreamgirl Posts: 2, Reputation: 1
    New Member
     
    #1

    Nov 9, 2008, 03:53 PM
    precal proofs
    can someone please help me slove these 4 questionss?



    1) Sin/ Csc + Cos/ Sec =1


    2) sin^2/Sec^2-1 = Cos^2


    3) tan/sin =sec


    4) 1/1-sin^2=1+tan^2



    I really need helpp!
    ISneezeFunny's Avatar
    ISneezeFunny Posts: 4,175, Reputation: 821
    Ultra Member
     
    #2

    Nov 9, 2008, 04:03 PM

    csc = 1/sin

    sec = 1/cos

    sin^2 + cos^2 = 1

    with these identities above, you can pretty much solve all of them. I'll start you off.

    1. sin/csc = sin/(1/sin) = sin*sin = sin^2

    cos/sec = cos/(1/cos) = cos*cos = cos^2

    sin^2 + cos^2 = 1

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Algebraic Proofs [ 3 Answers ]

how do I do this? Fill in the missing information in this Algebraic proof. Two lines intersect. Angle 1 equals ( 3x + 20) . Angle 2 = (5x - 16) , Angles 1 and 3 are vertical angles. The measure of angle 1 = the measure of angle 3. (Vertical Angles are Congruent) a.) _____ = (5x - 16)...

Verifying Trig Proofs [ 1 Answers ]

Csc X - Sin X= (cot X)(cos) Solve Please Show Me Step By Step

Proofs? Identities? [ 4 Answers ]

Some one teach me precal I can't do any of this. Prove the identity: (cosx)(tanx+sinxcotx)=sinx+cos^2x (thats cos squared times x)

Epsilon delta proofs [ 2 Answers ]

Could someone prove the following: Lim * * x^3=8 X->2


View more questions Search